Europe's clean tech roll out: how to ensure an evidence-based green transition?

Publishing date
02 April 2024
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Economic policy should be informed by reliable and transparent data. Unfortunately, when it comes to the green transition, which is one of the biggest transformations of our time, Europe continues to have a significant data problem. Clean tech data remains significantly fragmented and difficult to access and it is often only available on a commercial basis. This is problematic: transparent and granular data on clean tech innovation, manufacturing and deployment is essential to guide Europe’s green transition moving forward.

After almost a year of preparations, we are happy to announce the launch of our ‘European clean tech tracker’. With this initiative, we aim to provide a clear, timely and policy-relevant overview of the main innovation, manufacturing and deployment trends characterising the leading technologies which underpin the green transition. 


This first version of the tracker showcases the main manufacturing and deployment trends for solar energy, wind energy, batteries and electric vehicles, hydrogen and heat-pumps. The tracker will be regularly updated as new data becomes available. Over time, the topics covered within the tracker will expand to include trends in innovation and will include new technologies such as grids, nuclear energy, carbon capture, sequestration and more.

The tracker is designed to be regularly updated and stakeholders are encouraged to provide feedback and additional data to improve its coverage and granularity. We hope the tracker will become a critical tool to inform public sector and private sector decision-making processes, as well as the broader public discourse on Europe’s green transition.

Explore the European clean tech tracker by Ben McWilliams, Simone Tagliapietra and Cecilia Trasi here

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About the authors

  • Simone Tagliapietra

    Simone Tagliapietra is a Senior fellow at Bruegel. He is also a Professor of EU Energy and Climate Policy at The Johns Hopkins University - School of Advanced International Studies (SAIS) Europe.

    His research focuses on the EU climate and energy policy and on the political economy of global decarbonisation. With a record of numerous policy and scientific publications, also in leading journals such as Nature and Science, he is the author of Global Energy Fundamentals (Cambridge University Press, 2020) and co-author of The Macroeconomics of Decarbonisation (Cambridge University Press, 2024).

    His columns and policy work are widely published and cited in leading international media such as the BBC, CNN, Financial Times, The New York Times, The Economist, The Guardian, The Wall Street Journal, Süddeutsche Zeitung, Frankfurter Allgemeine Zeitung, Corriere della Sera, Le Monde, El Pais, and several others.

    Simone also is a Member of the Board of Directors of the Clean Air Task Force (CATF). He holds a PhD in Institutions and Policies from Università Cattolica del Sacro Cuore. Born in the Dolomites in 1988, he speaks Italian, English and French.

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